The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape.

动物体型越大，其体表体积比越低；躯体每增加一盎司的重量，所能散发热量的表面就成比例减少。

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Based on polymer surface modification and roughening method, the surface wettability of PP improved significantly. Film-forming ratio increased from about 40% to 95%.

本文利用聚合物表面改性和表面粗糙方法，大幅改善了PP表面的润湿性，成膜率从约40%提高到约95%。

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Then the maximal disfigurement of the surface was inspected by regional marking, and the ratio calculation of the surface was analyzed to check out the quality of the rubber bolt.

然后对图像中的表面缺陷进行区域标记，并详细分析了表面缺陷区域面积的计算方法，再利用最大缺陷区域面积比例来判定橡胶栓表面质量。

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The family of these materials includes much-touted, carbon-based members such as graphene and nanotubes, and are notable in part for their surface area-to-weight ratio.

BBC: 'White graphene' soaks up pollutants and can be re-used

The result, they claim in a paper that will appear this month in the Journal of Physical Chemistry, is a nanofibre material with an extremely high ratio of surface-area to volume.

ECONOMIST: Space-age soot